SenesTech: Glenbrook-managed accounts buy 30K shares
The 10 percent owner reported 2,196,973 common shares after the October 30 purchase, alongside warrants with ownership-based exercise caps.
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Form Type
4
Rhea-AI Filing Summary
SenesTech, Inc. (SNES) reported that accounts for which Glenbrook Capital Management, a ten percent owner, serves as investment manager purchased 28,000 common shares on October 28, 2026, at a weighted average $0.9651 per share, and 2,000 shares on October 30 at $1.0167. The respective purchase-price ranges were $0.8299 to $1.00 and $0.9870 to $1.0900. The shares are held directly by certain accounts; Glenbrook disclaims beneficial ownership except to the extent of its pecuniary interest. Glenbrook's reported indirect common-share holdings after October 30 were 2,196,973 shares. Its indirect warrant holdings were exercisable for 180,000 common shares: 90,000 held by PFS Trust and 90,000 by the Glenbrook Capital Management Inc. Employees Profit-Sharing Plan. The warrants have a $5.25 exercise price and expire November 22, 2026. The reporting person is currently unable to exercise them under the 4.99% GCM EPSP and 9.99% PFS Trust ownership limits. No Rule 10b5-1 plan is reported.
Insider Trade Summary
Net Buyer: 30,000 shares
Net Buy
4 txns
Insider
GLENBROOK CAPITAL MANAGEMENT
Role
10% Owner
Bought
30,000 shs ($29K)
| Type | Security | Shares | Price | Value |
|---|---|---|---|---|
| Purchase | Common Stock F3, F2 | 2,000 | $1.0167 | $2K |
| Purchase | Common Stock, par value $0.001 per share F1, F2 | 28,000 | $0.9651 | $27K |
| holding | Series I Common Stock Warrants (right to buy) F6, F4, F5, F2 | -- | -- | -- |
| holding | Series I Common Stock Warrants (right to buy) F6, F4, F5, F2 | -- | -- | -- |
Holdings After Transaction:
Common Stock, par value $0.001 per share — 2,194,973 shares (Indirect, See footnote);
Common Stock — 2,196,973 shares (Indirect, See footnote);
Series I Common Stock Warrants (right to buy) — 180,000 contracts (Indirect, I - By PFS Trust)
Footnotes (6)
- F1. The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $0.8299 to $1.00, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote.
- F2. The securities to which this filing relates are held directly by certain accounts for which Glenbrook Capital Management serves as investment manager. The Reporting Person disclaims beneficial ownership of the securities except to the extent of its pecuniary interest therein, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose.
- F3. The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $0.9870 to $1.0900, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote.
- F4. The Reporting Person's Form 3 filed on February 2, 2026 reported Series I Common Stock Warrants exercisable for 90,000 shares of Common Stock. As of that date, and as of the date of this report, the Reporting Person's indirect holdings of Series I Common Stock Warrants were exercisable for an aggregate of 180,000 shares of Common Stock, consisting of 90,000 shares held by PFS Trust and 90,000 shares held by the Glenbrook Capital Management Inc. Employees Profit-Sharing Plan ("GCM EPSP"). This report reflects the Reporting Person's holdings of Series I Common Stock Warrants as corrected. The Form 3 also reported an expiration date of November 13, 2026; the correct expiration date is set forth in footnote (6). There has been no transaction in the Series I Common Stock Warrants since the filing of the Form 3.
- F5. Pursuant to the terms of the Series I Common Stock Warrants, the Reporting Person cannot exercise any of the warrants to the extent the Reporting Person would beneficially own, after any such exercise, more than 4.99% of the outstanding Common Stock for the warrants held by GCM EPSP, or 9.99% of the outstanding Common Stock for the warrants held by PFS Trust. Consequently, the Reporting Person is not currently able to exercise the warrants reported herein.
- F6. The Series I Common Stock Warrants expire on the fifteen-month anniversary of the effective date of the Issuer's resale registration statement on Form S-3 (File No. 333-289650), which became effective on August 22, 2025. Because November 22, 2026 is not a Trading Day, under the terms of the warrants they may be exercised until 5:00 p.m. (New York City time) on the next succeeding Trading Day, November 23, 2026.
Key Figures
Common shares purchased: 28,000 shares
Weighted-average purchase price: $0.9651 per share
Common shares purchased: 2,000 shares
+5 more
8 metrics
Common shares purchased
28,000 shares
October 28, 2026
Weighted-average purchase price
$0.9651 per share
October 28, 2026; purchase prices ranged from $0.8299 to $1.00
Common shares purchased
2,000 shares
October 30, 2026
Weighted-average purchase price
$1.0167 per share
October 30, 2026; purchase prices ranged from $0.9870 to $1.0900
Common shares following transaction
2,196,973 shares
Reported after the October 30, 2026 purchase
Underlying shares of warrant holdings
180,000 shares
90,000 held by PFS Trust and 90,000 by GCM EPSP
Warrant exercise price
$5.25 per share
Series I Common Stock Warrants
Warrant ownership limits
4.99% (GCM EPSP); 9.99% (PFS Trust)
Limits stated in the warrant terms
Key Terms
weighted average price, pecuniary interest, beneficial ownership, Trading Day, +1 more
5 terms
weighted average price financial
"The price reported in Column 4 is a weighted average price."
Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.
pecuniary interest regulatory
"except to the extent of its pecuniary interest therein"
beneficial ownership regulatory
"disclaims beneficial ownership of the securities"
Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.
Trading Day technical
"Because November 22, 2026 is not a Trading Day"
A trading day is a calendar day when a stock exchange is open and securities can be bought or sold during its set market hours, like a store’s regular business hours. It matters to investors because price changes, order execution, daily volume, and settlement timing are tied to trading days, so performance, deadlines for trades or option expirations, and short-term strategies are measured and planned around them.
exercise price financial
"Series I Common Stock Warrants"
The exercise price is the fixed amount at which you can buy or sell an asset, like a stock, when using an options contract. It matters because it helps determine whether exercising the option will be profitable or not, depending on the current market price. Think of it as the set price you agree on today to buy or sell later.
FAQ
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AI-generated analysis. How Rhea-AI works. Not financial advice.
